CVE-2024-21637

Name: CVE-2024-21637
Creator: NVD / NIST
Published: 2024-01-11T06:15:43.787+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.55%

Last modified Jun 17, 2026

CVE-2024-21637 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with `response_mode=form_post`. EPSS estimates a 0.55% chance of exploitation in the next 30 days.

Description

Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with `response_mode=form_post`. This relatively user could use the described attacks to perform a privilege escalation. This vulnerability has been patched in versions 2023.10.6 and 2023.8.6.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.55%

41.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Goauthentik	Authentik	>= 2023.8.0, < 2023.8.6
Goauthentik	Authentik	>= 2023.10.0, < 2023.10.6

References

https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.6Patch
https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.6Patch
https://github.com/goauthentik/authentik/security/advisories/GHSA-rjpr-7w8c-gv3jMitigation, Third Party Advisory
https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.6Patch
https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.6Patch
https://github.com/goauthentik/authentik/security/advisories/GHSA-rjpr-7w8c-gv3jMitigation, Third Party Advisory

Timeline

Published: Jan 11, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-21637?

How severe is CVE-2024-21637?

CVE-2024-21637 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.

How do I fix CVE-2024-21637?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-21637?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST